SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for zwei-bags.ca

Valid
Issued by (CA)
Let's Encrypt
Subject
zwei-bags.ca.slangbarcelona.ca
Valid from
Jul 7, 2026
Valid until
Oct 5, 2026 (63 days remaining)
Public key
RSA 2048-bit
Serial
05467730B7F7F0BC0B8CCA058A34D62A1707
SHA-256 fingerprint
C0:A3:A1:18:CE:7D:D9:90:6C:ED:FA:2B:38:74:75:FC:0F:F5:E5:7C:4C:09:D0:F0:B5:B3:1F:93:D1:41:AE:AD
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (4)
*.zwei-bags.ca, www.zwei-bags.ca.slangbarcelona.ca, zwei-bags.ca, zwei-bags.ca.slangbarcelona.ca

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

This certificate has been served since Jul 29, 2026.

Never get surprised by zwei-bags.ca's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch zwei-bags.ca continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.